BWS125 tuning engine 250cc, long stroke, big valves, water cooling

Tuning upgrade of engine BWS125, ZUMA125 to 250cc. With water cooling, high-perfomance cylinder head EX23/IN25, big size 70mm cylinder kit with forged high-compression piston, crankshaft long stroke +6mm, modified transmission gear, forged variator, racing clutch. We are able to build any tuning engine or scooter such as JOG50, DIO50, BWS100 and 4 stroke engines like BWS125, GY6-125/150, 5ML, MIO115, YBR125. ★ OUR SHOP: https://bwsp.aliexpress.com/store/443... WORLDWIDE SHIPPING. ★ INSTAGRAM:   / bwsp_tuning   #bwsptuning #bwspengine #racingengine #engineforracing #yamahabws125 #yamahazuma125 #tuningengine #bigbore #scootertuning #scootermodification